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WO2006064190A1 - Generateur de fumee synthetique et testeur de detecteur de fumee utilisant un tel generateur - Google Patents

Generateur de fumee synthetique et testeur de detecteur de fumee utilisant un tel generateur Download PDF

Info

Publication number
WO2006064190A1
WO2006064190A1 PCT/GB2005/004731 GB2005004731W WO2006064190A1 WO 2006064190 A1 WO2006064190 A1 WO 2006064190A1 GB 2005004731 W GB2005004731 W GB 2005004731W WO 2006064190 A1 WO2006064190 A1 WO 2006064190A1
Authority
WO
WIPO (PCT)
Prior art keywords
smoke
detector
tube
liquid
generator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2005/004731
Other languages
English (en)
Inventor
Stewart Pepper
Eddie Ozaki-Owen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sata Ltd
Original Assignee
Sata Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sata Ltd filed Critical Sata Ltd
Priority to JP2007546162A priority Critical patent/JP4891918B2/ja
Priority to US11/721,642 priority patent/US7852227B2/en
Priority to AT05818017T priority patent/ATE511171T1/de
Priority to CN2005800480239A priority patent/CN101116122B/zh
Priority to EP05818017A priority patent/EP1831851B1/fr
Publication of WO2006064190A1 publication Critical patent/WO2006064190A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
    • G08B29/145—Checking intermittently signalling or alarm systems checking the detection circuits of fire detection circuits

Definitions

  • the present invention relates to a device for generating synthetic smoke and also to a hazard detector tester utilising such a device.
  • hazard detectors such as smoke detectors
  • a pressurised can One such tester is the one sold under the trade name 'Trutest' where an aerosol container is discharged into an intermediate chamber to accumulate the aerosol particles prior to delivering them through to the detector.
  • pressurized containers are not particularly convenient as they are classified as 'hazardous' and hence costly to transport.
  • propellants used cause difficulty either because they are flammable, are greenhouse gases or attack the ozone layer. While it is possible to utilise suitable propellants and so overcome any environmental issues, there is a market for an alternative to the use of pressurized containers in certain circumstances.
  • a further proposal for generating synthetic smoke electrically is disclosed in US 3,891,826 and utilises a capillary tube one end of which sits in a reservoir of liquid. Within the capillary tube is located a further tube and the gap between the outer wall of the further tube and the inner wall of the capillary tube creates an annular space which has capillary dimensions and which draws the liquid up into the annular space where it is heated by an electrically operated heated element housed within the further tube.
  • This particular arrangement requires that there is a small head of liquid to feed into the capillary space. This renders it inappropriate for use in a device which might be tilted or inverted during use. It is an object of the present invention to provide an electrically operated synthetic smoke generator which avoids the disadvantages of the prior arrangements.
  • the present invention provides an apparatus for testing a hazard detector comprising, for example, an open-topped housing for receiving a detector under test, the housing containing a smoke generator device, a chamber for receiving smoke generated by the generator device and means for directing the smoke in the receiving means towards the detector under test, characterised in that the smoke generator device comprises a source of vaporisable liquid, a tube one end of which is immersed in the source of liquid and the other end of which is provided with an electrical heater for vaporising the liquid in said other end in order to generate smoke.
  • the smoke generator device comprises a source of vaporisable liquid, a tube one end of which is immersed in the source of liquid and the other end of which is provided with an electrical heater for vaporising the liquid in said other end in order to generate smoke.
  • Other arrangements of the present invention to perform the function of hazard detector testing are also possible. It could be either fixed in location at or near a hazard detector or it could be portable.
  • the invention is adaptable to enable testing of many different arrangements of haz
  • the preferred embodiment of the present invention is a smoke detector tester of a type which is portable and is capable of being mounted on the end of a pole so as to be lifted into the test condition by an operator standing on the ground while the detector under test is located on, for example, a ceiling.
  • the tester is designed to cause a sample of test synthetic smoke to be emitted in the vicinity of a detector under test to cause the detector to be activated. It may be tilted to access detectors in awkward positions, or even inverted during use.
  • a smoke detector tester includes a cup shaped housing 15 which has a flexible membrane 15a with an opening of a size and shape capable of receiving the detector 16.
  • the membrane has sufficient flexibility to allow for a range of different detector samples.
  • a synthetic smoke generator generally indicated by the reference numeral 30.
  • the generator is housed in a chamber 6 in a lower portion of the cup shaped housing 15 and communicates with the upper portion of the housing 15 by means of a duct 13 which has a horizontally directed outlet 14 for directing the synthetic smoke directly towards the detector 16 under test.
  • a spacer (not shown) may be provided in order to accurately locate the outlet 14 with respect to the detector.
  • the synthetic smoke generator comprises a reservoir housing 8 arranged to contain a vaporisable fluid in an airtight collapsible bag 9.
  • the fluid used is preferably a mixture of some or all of propylene glycol, di-propylene glycol, poyethylene glycol and water. In addition, other components may be added to give suitable smoke characteristics.
  • An air vent hole 10 in the reservoir housing 8 allows the bag to collapse as the fluid in the bag 9 is consumed.
  • Fluid is supplied to the smoke generator 30 by means of a tube 31 which depends into the bag 9 and has at least a portion of its length subjected to the action of a pump which is preferably a peristaltic pump 32.
  • the tube supplies the smoke generator 30 which is preferably in the form of a vitreous tube 33 provided with an electrically activated heater .
  • the tube 33 is located in the chamber 6 which is subjected to the action of a fans or blower 12 to increase the pressure in the chamber 6. This will cause synthetic smoke in the chamber 6 to move into the duct 13 and out of the outlet 14 with the necessary velocity.
  • vaporisable fluid moves from the collapsible bag 9 through the tube 31 into the region of the heating element 1 under the action of the peristaltic pump 32.
  • the heating element When the heating element is connected to a source of current, the heating element vaporises the fluid in vitreous tube 33 in the region of the heating element which causes a synthetic smoke, actually a fog or mist, to be emitted from the top of the chamber 6.
  • the fan or blower 12 is arranged to blow the synthetic smoke into the duct 13 and thence to the outlet 14 at sufficient speed to ensure that the detector 16 is activated promptly
  • the flow of smoke from the chamber 6 into the duct 13 may be regulated by a flap valve 17 which can be opened and closed in a controlled fashion.
  • control of the flap valve is achieved by utilising an actuating wire made from a shape memory alloy, trade name Flexinol, which contracts in length by an appreciable amount (typically 5%) when heated by passing an electric current through it. This contraction causes the flap valve to open.
  • the valve is normally held closed by a spring (not shown).
  • the tester is preferably battery powered and the batteries are most conveniently located in a support pole at a position adjacent the tester body to reduce voltage drop between the batteries and the tester.
  • Control of the currents to the heating element, the fan 12, pump 32 and the valve actuating wire is accomplished using control circuitry on an electronic circuit board 21 which is arranged to control the heating element and pump to govern the attributes of the smoke generated.
  • Fluid when pumped into the tube 33 is boiled with the resulting vapour passing into the chamber 6 where it condenses to form a fog.
  • the fan assists in condensation. Any large droplets of fluid or splashes which emerge from the top of the tube 33 or which arise from condensation on the side walls of the chamber 6 will run down the interior walls of the chamber 6 to the bottom where they are preferably channelled into a sponge 34 through tube 35.
  • Sponge 34 can be housed in the reservoir housing 8 for convenience.
  • the reservoir housing 8 can be replaced when the supply of fluid in the collapsible bag 9 is exhausted. Also, with the sponge 34 housed in the reservoir housing 8, the sponge 34 is replaced at the same time, removing the need to replace it separately when or if it becomes saturated. Also, if the tube 31 is housed within the reservoir housing 8, it too is replaced at the same time the fluid supply is replaced, thus eliminating the possibility of malfunction of the pump due to wear of the tube.
  • the above arrangement has the advantage that the synthetic smoke can be produced continually and the amount of synthetic smoke actually dispensed is controlled by operation of the valve 17 and the fan 12. This is in contrast to previous arrangements where the amount of smoke produced was totally dependent on the amount of smoke instantaneously generated by the generator. Alternatively, the synthetic smoke can be produced as required and dispensed instantaneously if desired, controlled by operation of the element 1 and the fan 12, without the need for the valve 17.
  • the hazard detector After the hazard detector has successfully been activated using the synthetic smoke, it may be necessary to clear the smoke from inside the detector so that the detector or alarm signal can be reset. This may be done expediently with the present invention by using the fan 12 to blow clean air through duct 13 and out of outlet 14 into the detector. The smoke generation will not be operational at this time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

La présente invention concerne un dispositif exploité électriquement pour générer une fumée synthétique et également un testeur de détecteur de danger utilisant un tel dispositif. Le dispositif comprend un conteneur pliant pourvu d’un liquide vaporisable et un tube, dont une extrémité est immergée dans le liquide et dont l’autre extrémité est pourvue d’un réchauffeur électrique pour vaporiser le liquide dans l’autre extrémité du tube afin de générer une fumée. Une pompe péristaltique sert à pomper le liquide à travers le tube.
PCT/GB2005/004731 2004-12-13 2005-12-09 Generateur de fumee synthetique et testeur de detecteur de fumee utilisant un tel generateur Ceased WO2006064190A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2007546162A JP4891918B2 (ja) 2004-12-13 2005-12-09 人工煙（ｓｙｎｔｈｅｔｉｃｓｍｏｋｅ）発生装置、および、こうした発生装置を使用する煙検知器用テスタ
US11/721,642 US7852227B2 (en) 2004-12-13 2005-12-09 Synthetic smoke generator and smoke detector tester using such a generator
AT05818017T ATE511171T1 (de) 2004-12-13 2005-12-09 Generator für synthetischen rauch und einen solchen generator verwendende rauchdetektortestvorrichtung
CN2005800480239A CN101116122B (zh) 2004-12-13 2005-12-09 合成烟雾发生器以及使用其的烟雾探测器检验仪
EP05818017A EP1831851B1 (fr) 2004-12-13 2005-12-09 Generateur de fumee synthetique et testeur de detecteur de fumee utilisant un tel generateur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0427229.0A GB0427229D0 (en) 2004-12-13 2004-12-13 Synthetic smoke generator and smoke detector tester using such a generator
GB0427229.0 2004-12-13

Publications (1)

Publication Number Publication Date
WO2006064190A1 true WO2006064190A1 (fr) 2006-06-22

Family

ID=34073608

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/004731 Ceased WO2006064190A1 (fr) 2004-12-13 2005-12-09 Generateur de fumee synthetique et testeur de detecteur de fumee utilisant un tel generateur

Country Status (7)

Country Link
US (1) US7852227B2 (fr)
EP (1) EP1831851B1 (fr)
JP (1) JP4891918B2 (fr)
CN (1) CN101116122B (fr)
AT (1) ATE511171T1 (fr)
GB (1) GB0427229D0 (fr)
WO (1) WO2006064190A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7587926B2 (en) * 2006-01-13 2009-09-15 Hsi Fire & Safety Group, Llc Method and apparatus for testing detectors
WO2010016902A3 (fr) * 2008-08-08 2010-12-02 S. C. Johnson & Son, Inc. Pulvérisateur à moteur
EP2261873A1 (fr) 2009-05-29 2010-12-15 Red Dot Technologies Limited Système d'alarme en cas d'incendie
US8205478B1 (en) * 2008-12-24 2012-06-26 Hallisey Richard D Smoke detector testing tool
GB2543065A (en) * 2015-10-06 2017-04-12 Thorn Security Smoke detector tester
WO2018104863A1 (fr) 2016-12-06 2018-06-14 Chau Michel Appareil générateur d'effets visuels tridimensionnels, et dispositif générateur de fumée pour un tel appareil

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GB0805063D0 (en) * 2008-03-18 2008-04-23 No Climb Products Ltd Testing of aspirating systems
WO2011086599A1 (fr) * 2010-01-14 2011-07-21 株式会社プロサス Instrument de test
JP5645705B2 (ja) * 2011-02-21 2014-12-24 能美防災株式会社 加煙試験器
US8500039B2 (en) 2011-07-25 2013-08-06 Arthur L Allen, Jr. Remote actuation device for spray cans
KR101309882B1 (ko) 2011-08-09 2013-09-17 김종찬 친환경 모형 증기기관차용 백연 발생장치
US8353625B1 (en) * 2011-10-03 2013-01-15 Hsi Fire & Safety Group, Llc Heat detector tester
JP5852397B2 (ja) * 2011-10-17 2016-02-03 能美防災株式会社 加煙試験器
JP6005368B2 (ja) * 2011-11-14 2016-10-12 ホーチキ株式会社 加煙試験器具用の発煙体、加煙試験器具及び加煙試験方法
JP6005369B2 (ja) * 2011-11-14 2016-10-12 ホーチキ株式会社 加煙試験器具
US8973211B2 (en) 2012-02-04 2015-03-10 Hsi Fire & Safety Group, Llc Detector cleaner and/or tester and method of using same
US20130305807A1 (en) * 2012-05-16 2013-11-21 Hon Hai Precision Industry Co., Ltd. Gas detector test system and apparatus
JP5969824B2 (ja) * 2012-06-01 2016-08-17 ホーチキ株式会社 加煙試験機
JP2013254365A (ja) * 2012-06-07 2013-12-19 Hochiki Corp 加煙試験機
CN103398864A (zh) * 2013-08-21 2013-11-20 青岛明华电子仪器有限公司 油烟发生器
CN104014099B (zh) * 2014-01-17 2018-03-02 徐继承 一种感烟火灾探测器响应阈值在线检测装置
US9679468B2 (en) 2014-04-21 2017-06-13 Tyco Fire & Security Gmbh Device and apparatus for self-testing smoke detector baffle system
US9659485B2 (en) 2014-04-23 2017-05-23 Tyco Fire & Security Gmbh Self-testing smoke detector with integrated smoke source
WO2017041186A1 (fr) 2015-09-13 2017-03-16 Proflex+ Distribution Inc. Machine de fumée d'inspection
CN105158420A (zh) * 2015-09-17 2015-12-16 华南理工大学 一种油烟发生装置
GB2552298B (en) * 2016-06-17 2020-11-04 Sata Ltd Stimulus generating apparatus
CN109544847A (zh) * 2018-12-08 2019-03-29 湖南明盛高新科技有限公司 一种多功能的电气火灾预警装置
US12436078B2 (en) * 2022-08-10 2025-10-07 Honeywell International Inc. Aspirating smoke detector with test module
US12270751B2 (en) 2022-10-19 2025-04-08 Ul Llc Systems and methods for wildfire smoke generation and electronics testing
CN117198137A (zh) * 2023-09-14 2023-12-08 中国民航大学 一种可替代真实火灾烟雾的烟雾模拟装置及实验方法

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US20040035179A1 (en) * 2000-09-29 2004-02-26 Hubert Koch Gas or heat detector, gas or heat generator, flue gas generator, method for testing a gas detector or a heat detector, and method for testing a flue gas detector

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US20040035179A1 (en) * 2000-09-29 2004-02-26 Hubert Koch Gas or heat detector, gas or heat generator, flue gas generator, method for testing a gas detector or a heat detector, and method for testing a flue gas detector
EP1281957A1 (fr) * 2001-07-30 2003-02-05 Siemens Building Technologies AG Avertisseur de gaz combustible avec dispositif d'autotest

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7587926B2 (en) * 2006-01-13 2009-09-15 Hsi Fire & Safety Group, Llc Method and apparatus for testing detectors
WO2010016902A3 (fr) * 2008-08-08 2010-12-02 S. C. Johnson & Son, Inc. Pulvérisateur à moteur
CN102170973A (zh) * 2008-08-08 2011-08-31 约翰逊父子公司 动力喷雾器
US8205478B1 (en) * 2008-12-24 2012-06-26 Hallisey Richard D Smoke detector testing tool
EP2261873A1 (fr) 2009-05-29 2010-12-15 Red Dot Technologies Limited Système d'alarme en cas d'incendie
GB2543065A (en) * 2015-10-06 2017-04-12 Thorn Security Smoke detector tester
US10783771B2 (en) 2015-10-06 2020-09-22 Thorn Security Limited Smoke detector tester
WO2018104863A1 (fr) 2016-12-06 2018-06-14 Chau Michel Appareil générateur d'effets visuels tridimensionnels, et dispositif générateur de fumée pour un tel appareil
US11478723B2 (en) 2016-12-06 2022-10-25 Michel Chau Apparatus for generating three-dimensional visual effects, and smoke-generating device for such an apparatus

Also Published As

Publication number Publication date
ATE511171T1 (de) 2011-06-15
GB0427229D0 (en) 2005-01-12
JP2008523522A (ja) 2008-07-03
US20090273464A1 (en) 2009-11-05
EP1831851B1 (fr) 2011-05-25
EP1831851A1 (fr) 2007-09-12
JP4891918B2 (ja) 2012-03-07
US7852227B2 (en) 2010-12-14
CN101116122A (zh) 2008-01-30
CN101116122B (zh) 2010-05-12

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